GENERAL DESCRIPTION
The ADuM5401/ADuM5402/ADuM5403/ADuM54041 are quad-channel digital isolators with isoPower®, an integrated, isolated dc-to-dc converter. Based on the Analog Devices, Inc., iCoupler® technology, the dc-to-dc converter provides up to 500 mW of regulated, isolated power at either 5.0 V or 3.3 V from a 5.0 V input supply, or at 3.3 V from a 3.3 V supply at the power levels shown in Table 1. These devices eliminate the need for a separate, isolated dc-to-dc converter in low power, isolated designs. The iCoupler chip scale transformer technology is used to isolate the logic signals and for the power and feedback paths in the dc-to-dc converter. The result is a small form factor, total isolation solution.

FEATURES
   isoPower integrated, isolated dc-to-dc converter
   Regulated 3.3 V or 5.0 V output
   Up to 500 mW output power
   Quad dc-to-25 Mbps (NRZ) signal isolation channels
   16-lead SOIC package with 7.6 mm creepage
   High temperature operation: 105°C maximum
   High common-mode transient immunity: >25 kV/μs
   Safety and regulatory approvals
      UL recognition
         2500 V rms for 1 minute per UL 1577
      CSA Component Acceptance Notice #5A
      VDE certificate of conformity (pending)
         IEC 60747-5-2 (VDE 0884, Part 2)
         VIORM = 560 V peak

APPLICATIONS
   RS-232/RS-422/RS-485 transceivers
   Industrial field bus isolation
   Power supply start-up bias and gate drives
   Isolated sensor interfaces
   Industrial PLCs